Home / 19,149.99-26,420.54-11,187.69

Finding the Fourth Proportional to 19,149.99, 26,420.54 and 11,187.69

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Solution

The fourth proportional to 19,149.99, 26,420.54 and 11,187.69 is: 15,435.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,149.99 : 26,420.54 = 11,187.69 : x
  2. Step 2: Convert to fraction form
    19,149.99/26,420.54 = 11,187.69/x
  3. Step 3: Cross multiply
    19,149.99x = 26,420.54 × 11,187.69
  4. Step 4: Simplify right side
    19,149.99x = 295,584,755.21
  5. Step 5: Solve for x
    x = 295,584,755.21/19,149.99
  6. Step 6: Final answer
    x = 15,435.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.